Weight Conversions




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Weight Conversion Chart for Gold, Silver and Gems:
Gold and silver are commonly nleasured in Troy weight, a system that includes pennyweights, ounces and pounds. The ounces and pounds do not equal the Avoirdupois or customary U.S. system that other common goods are measured in. For example a troy ounce weighs about 10 percent more than a Avoirdupois ounce.

24 grains = 1 penny weight = 1.5552 grams
1 gram = .64 pennyweight
1 pennyweight = 1.56 grams or .05 troy ounce
20 pennyweight = 1 troy ounce = 31.1035 grams
12 ounces = 1 pound troy = 373.24 grams

To Convert:
Troy ounces to grams     multiply by 31.1
Troy ounces to pennyweight     multiply by 20
Troy ounces to pounds troy     divide by 12
Pennyweight to grams     multiply by 1.56
Pennyweight to troy ounces     multiply by .05 (or divide by 20)
Grams to pennyweight     multiply by .64
Grams to troy ounces     multiply by 0.032
Grams to carats     multiply by 5
Carats to grams     multiply by 0.2 (or divide by 5)
Carats to "Points"     multiply by 100
"Points" to carats     multiply by 0.01 (or divide by 100)